{
  "bibcode": "2011GCN.11863....1L",
  "body": "G. Leloudas (DARK/NBI), D. Xu (WIS), J. Hjorth (DARK/NBI), P.  \nJakobsson (U. Iceland), M. Bayliss (U. Chicago/KICP), report on behalf  \nof a larger collaboration:\n\nWe re-observed the field of GRB 110402A (Ukwatta  et al., GCN 11857)  \nwith the Nordic Optical Telescope (La Palma, Spain) equipped with  \nMOSCA. We obtained two more 600 s R-band exposures starting at 02:38  \nUT and 04:24 UT.\n\nIn the table below we summarize all photometry obtained at the NOT,  \nwhere we have also re-calibrated the photometry in Leloudas et al.  \n(GCN 11859) based on several USNO B1.0 stars in the field:\n\nt_start (min) \tR (mag)\n83.1\t\t21.15 +- 0.06\n96.6\t\t21.10 +- 0.08\n145.5\t\t21.10 +- 0.06\n251.6\t\t21.50 +- 0.07\n\nThe source has faded significantly between our last two observations  \nconfirming its transient nature.",
  "circularId": 11863,
  "createdOn": 1301733899000,
  "email": "giorgos@dark-cosmology.dk",
  "subject": "GRB 110402A: further NOT observations",
  "submitter": "Giorgos Leloudas at Dark Cosmology Centre  <giorgos@dark-cosmology.dk>",
  "eventId": "GRB 110402A"
}